For starters, this isn't a hidden perk. It's the perk "cannibalism," which anyone can take.

Second, this is a mod that lets those with the perk eat a baby you find in the DLC, "The Pitt." The baby's a plot point in that she's immune to a form of mutation that's turning everyone in The Pitt into monsters called "Trogs." You can turn her over to one faction or join the one that currently has her.

It would have kind of fit with the game, but kids are indestructible in F3 and FNV since murdering kids is kind of frowned upon. It wasn't so bad when the game was a turn-based isometric affair in F1 and F2, but when it's an FPS, that might be a bit much.

EvilHomerBit much nothing, the child murdering mod is the single best thing about this game. And judging by the way the designers decided to handle Lamplight, I'm certain that they intended for us to play with child murder enabled.

Do the vanilla quest where you kidnap a little girl and sell her as a sex slave first, then gun the rest down.

candyheadrobotYeah cannibalism is pretty regular for Bethesda, in Skyrim if you run into certain girl, this quest just starts where you have to go hunt a guy down to eat him. Dunno if killing kids is a default though, I've never tried.

EvilHomerKilling kids is expressly forbidden by default in every Bethesda game. In their pre-Fallout titles (Oblivion, Morrowind) they left children out of the game for precisely this reason (although you can make your own child-like characters by messing around with the SetScale console command). Since Fallout 3, they've included children, but use different techniques to disable child killing and, in some cases, attempt to confound modders looking to rectify that oversight. They always fail, and there are child killing mods available for every game, but it's fun to watch Bethesda struggle against progress sometimes.

Interestingly enough, I've never met any TES fans who object to the idea of murdering children, so why Bethesda would choose to be so prudish about the matter is beyond me.

SteamPoweredKleenexThey leave it out because if they put it in, it'd make the hoo-hah over sex in Mass Effect look like a fight over favorite flavors of ice cream. Fox News would call it "a child murder simulator" and Bethesda execs would have to go take part in congressional hearings, etc.

I don't think gamers would freak, but those who are constantly looking to further their careers via outrage would have a field day.

That said, Fallout 1 and 2 handled it well. If you killed two or more kids (they gave you one freebie, which when you see how combat goes is understandable), you got the "childkiller" perk, and life became very difficult for your character:

http://fallout.wikia.com/wiki/Childkiller

It probably helped that the kids being killed were tiny pixel-figures rather than photorealistic and fully voiced characters.

And fuck Little Lamplight. It made no goddamn sense except that someone watched too many old episodes of Star Trek. Where were new kids coming from? Why can't an adult (or anyone) just blow up the gate with a mini-nuke and get in? How did the Enclave get into Vault 87, unless they went through LL, and if they did, why are the kids still alive?

I loves me some Fallout 3, but Little Lamplight was an idea that needed a lot more work to make sense.

Quad9DamageThere's a mod called Child of the Wasteland for FO3 and NV that lets you play through the entire game as a child character. In FO3 Vault 101 is modified so dad never mentions your age and the game acknowledges you escaping at age 11. I know that in at least the FO3 you have the option to kill kids. Not so sure about NV.

And Child of the Wasteland is interesting. It makes current-gen Fallout scary as hell when you're playing a kid in post-nuclear hell.

SteamPoweredKleenexI think it's also possible to escape from the vault as a baby if you know what you're doing and play the game as such.

Caminante NocturnoOh man, you should take a look at Skyrim screenshots I have on my Steam account.